61728400

素因数分解:

$2^4\times 5^2\times {\mathrm{154321}}^1$

素因数の和:154339

約数の個数: 30

約数和(自身を含む): 148303442

約数和(自身を除く): 86575042

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 154321, 308642, 617284, 771605, 1234568, 1543210, 2469136, 3086420, 3858025, 6172840, 7716050, 12345680, 15432100, 30864200, 61728400]

約数ペア:

[(1, 61728400), (2, 30864200), (4, 15432100), (5, 12345680), (8, 7716050), (10, 6172840), (16, 3858025), (20, 3086420), (25, 2469136), (40, 1543210), (50, 1234568), (80, 771605), (100, 617284), (200, 308642), (400, 154321)]